Detection of a bright burst from the repeating fast radio burst 20201124A at 2 GHz-Reference-Cited by-同舟云学术

Detection of a bright burst from the repeating fast radio burst 20201124A at 2 GHz

Published:2023-01-11 Issue:1 Volume:75 Page:199-207
ISSN:0004-6264
Container-title:Publications of the Astronomical Society of Japan
language:en
Short-container-title:

Author:

Ikebe Sota¹²^ORCID,Takefuji Kazuhiro³^ORCID,Terasawa Toshio⁴^ORCID,Eie Sujin¹²⁵^ORCID,Akahori Takuya²⁶^ORCID,Murata Yasuhiro³⁷⁸,Hashimoto Tetsuya⁹^ORCID,Kisaka Shota¹⁰^ORCID,Honma Mareki¹²¹¹^ORCID,Yoshiura Shintaro²^ORCID,Suzuki Syunsaku²,Oyama Tomoaki¹¹^ORCID,Sekido Mamoru¹²^ORCID,Niinuma Kotaro¹³¹⁴^ORCID,Takeuchi Hiroshi⁷⁸^ORCID,Yonekura Yoshinori¹⁵^ORCID,Enoto Teruaki¹⁶¹⁷^ORCID

Affiliation:

1. Department of Astronomy, School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 , Japan

2. Mizusawa VLBI Observatory, National Astronomical Observatory of Japan , 2-21-1 Osawa, Mitaka, Tokyo 181-0015 , Japan

3. Usuda Deep Space Center, Japan Aerospace Exploration Agency , 1831-6 Oomagari, Kamiodagiri, Saku, Nagano 384-0306 , Japan

4. Institute for Cosmic Ray Research, The University of Tokyo , 5-1-5 Kashiwa-no-ha, Kashiwa, Chiba 277-8582 , Japan

5. Institute of Astronomy and Astrophysics, Academia Sinica , 11F of AS/NTU Astronomy-Mathematics Building, No. 1, Sec. 4, Roosevelt Rd, Taipei 10617, Taiwan , R.O.C

6. Operation Division, Square Kilometre Array Observatory, Jodrell Bank Observatory, Lower Withington , Macclesfield, Cheshire SK11 9FT , UK

7. Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science , 3-1-1 Yoshinodai, Sagamihara, Kanagawa 252-5210 , Japan

8. Department of Space and Astronautical Science, SOKENDAI (The Graduate University for Advanced Studies) , 3-1-1 Yoshinodai, Chuo-ku, Sagamihara-shi, Kanagawa 252-5210 , Japan

9. Department of Physics, National Chung Hsing University , No. 145, Xingda Rd., South Dist., Taichung 40277, Taiwan ( R.O.C. )

10. Department of Physics, Hiroshima University , 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526 , Japan

11. Mizusawa VLBI Observatory, National Astronomical Observatory of Japan , 1-2-2 Mizusawa-Hoshigaoka, Oshu, Iwate 023-0861 , Japan

12. National Institute of Information and Communications Technology , 4-2-1 Nukui-Kitamachi, Koganei, Tokyo 184-8795 , Japan

13. Graduate School of Sciences and Technology for Innovation, Yamaguchi University , 1677-1 Yoshida, Yamaguchi 753-8512 , Japan

14. The Research Center for Time Studies, Yamaguchi University , 1677-1 Yoshida, Yamaguchi, Yamaguchi 753-8511 , Japan

15. Center for Astronomy, Ibaraki University , 2-1-1, Bunkyo, Mito, Ibaraki 310-8512 , Japan

16. Cluster for Pioneering Research, RIKEN , 2-1 Hirosawa, Wako, Saitama 351-0198 , Japan

17. Department of Physics, Graduate School of Science, Kyoto University, Kitashirakawa Oiwake-cho , Sakyo-ku, Kyoto, Kyoto 606-8502 , Japan

Abstract

Abstract We present a detection of a bright burst from the fast radio burst (FRB) 20201124A, which is one of the most active repeating FRBs, based on S-band observations with the 64 m radio telescope at the Usuda Deep Space Center/JAXA. This is the first FRB observed by using a Japanese facility. Our detection at 2 GHz in 2022 February is the highest frequency for this FRB and the fluence of >189 Jy ms is one of the brightest bursts from this FRB source. We place an upper limit on the spectral index α = −2.14 from the detection of the S band and non-detection of the X band at the same time. We compare the event rate of the detected burst with those from previous research and suggest that the power law of the luminosity function might be broken at lower fluence and the fluences of bright FRBs are distributed up to over 2 GHz with the power law against frequency. In addition, we show that the energy density of the burst detected in this work is comparable to the bright population of one-off FRBs. We propose that repeating FRBs can be as bright as one-off FRBs and only their brightest bursts might be detected, so some repeating FRBs intrinsically might have been classified as one-off FRBs.

Funder

JSPS

National Science and Technology Council of Taiwan

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

Link

https://academic.oup.com/pasj/article-pdf/75/1/199/54655627/psac101.pdf

Reference44 articles.

1. On the True Fractions of Repeating and Nonrepeating Fast Radio Burst Sources

2. Detection of Repeating FRB 180916.J0158+65 Down to Frequencies of 300 MHz